Top toy

Abstract

A top toy includes a trunk part and a shaft. The shaft has first and second engagement parts on an outer periphery thereof. The shaft extends in an axial direction. The trunk part has a shaft hole formed in a rotational center thereof. The shaft is inserted in the shaft hole when the shaft is assembled with the trunk part. The trunk part includes a first claw in the shaft hole. The second engagement part is configured lower than the first engagement part in the axial direction. The first claw projects inside the shaft hole, and is configured to selectively lock with the first engagement part or the second engagement part by a prescribed urging force. The trunk part and the shaft are engaged when the first claw is locked with either the first engagement part or the second engagement part.

What is claimed is: 
     
         1 . A top toy comprising
 a trunk part; and   a shaft having first and second engagement parts on an outer periphery thereof, the shaft extending in an axial direction;   the trunk part having a shaft hole formed in a rotational center thereof,   the shaft being inserted in the shaft hole when the shaft is assembled with the trunk part,   the trunk part including a first claw in the shaft hole,   the second engagement part being configured lower than the first engagement part in the axial direction,   the first claw projecting inside the shaft hole, and being configured to selectively lock with the first engagement part or the second engagement part by a prescribed urging force, and   the trunk part and the shaft being engaged when the first claw is locked with either the first engagement part or the second engagement part.   
     
     
         2 . The top toy according to  claim 1 , wherein
 the trunk part includes an upper trunk part and a lower trunk part,   the upper trunk part, the lower trunk part, and the shaft are disassembled by an impact from a collision with another top toy, and   the shaft hole is formed on the lower trunk part.   
     
     
         3 . The top toy according to  claim 1 , wherein
 the trunk part includes a second claw in the shaft hole,   the first and second claws face opposite sandwiching a center line of the shaft hole,   the first engagement part is provided at least in a pair at symmetrical positions sandwiching a shaft center, and   the second engagement part is provided at least in a pair at symmetrical positions sandwiching the shaft center, and   the position at which the first engagement part is provided and the position at which the second engagement part is provided are displaced at a prescribed angle in the circumferential direction.   
     
     
         4 . The top toy according to  claim 1 , wherein
 the shaft includes a flange part overhanging and facing radially outward at the outer periphery of the shaft,   the flange part is configured at a position below the first engagement part and the second engagement part,   the flange includes a first group of recesses and a first group of projections formed in a circumferential direction on a top surface of the flange part,   the trunk part includes a second group of recesses and a second group of projections on an outside surface of a bottom edge part thereof,   the first group of recesses and the first group of projections correspond to the first group of projections and the second group of recesses respectively,   when in a state with the first group of projections are in contact with the second group of projections, the claws are locked with the first engagement part, and   when in a state with the first group of recesses and the first group of projections are fitted to the second group of recesses and the second group of projections respectively, the first and second claws are locked with the second engagement part.   
     
     
         5 . The top toy according to  claim 4 , wherein
 the first group of recesses and the first group of projections and the second group of recesses and the second group of projections are respectively point symmetrical sandwiching the rotational center of the top toy.   
     
     
         6 . The top toy according to  claim 4 , wherein
 at least the first group of recesses and the first group of projections are formed in a wave shape along the circumferential direction.   
     
     
         7 . The top toy according to  claim 1 , wherein
 at least a portion of the first engagement part and the second engagement part is in communication across a circumferential direction of the shaft.   
     
     
         8 . The top toy according to  claim 1 , wherein
 third and fourth engagement parts are configured continuously with the first engagement part and the second engagement part in the circumferential direction.   
     
     
         9 . The top toy according to  claim 4 , wherein
 the shaft includes a gear below the flange part, and   the gear is engageable with an external rack.