Top toy component and top toy

Abstract

A top toy component includes a first trunk part having a hole, and a shaft member having first and second portions. The shaft member is detachably inserted to the hole to rotate around the shaft member. The hole part and the first portion are configured to rotate relatively with respect to the second portion to change an outer circumferential shape of the first trunk part.

What is claimed is: 
     
         1 . A top toy component, comprising:
 a first trunk part having a hole; and   a shaft member having first and second portions,   the shaft member being detachably inserted to the hole to rotate around the shaft member,   the hole part and the first portion being configured to rotate relatively with respect to the second portion to change an outer circumferential shape of the first trunk part.   
     
     
         2 . The top toy component according to  claim 1 , wherein
 the first trunk part includes first and second layers,   the first portion is the first layer,   the second portion is the second layer   the hole part is provided at the first layer, and   the first layer is rotatable within a prescribed range relatively with respect to the second portion.   
     
     
         3 . The top toy component according to  claim 2 , wherein
 after changing of the outer circumference shape of the first trunk part, the shaft member is rotatable relatively with respect to the first portion.   
     
     
         4 . The top toy component according to  claim 3 , wherein
 the first trunk part includes a clutch mechanism being configured to receive rotational force of the shaft member via the hole part.   
     
     
         5 . The top toy component according to  claim 4 , wherein
 rotational resistance force of the clutch mechanism is greater than force required for the first layer to rotate relatively with respect to the second layer.   
     
     
         6 . The top toy component according to  claim 5 , wherein
 a member constituting the clutch mechanism is formed from a harder material than a member constituting the outer circumference of the first trunk part.   
     
     
         7 . The top toy component according to  claim 2 , wherein
 the first layer is lower than the second layer,   on the outer circumference of the first layer, a first plurality of lower layer jutting parts that jut in a radial direction are formed at a prescribed interval in the outer circumference direction, and   on the outer circumference of the second layer, a second plurality of upper layer jutting parts that jut in the radial direction are formed at a prescribed interval in a radial direction.   
     
     
         8 . The top toy component according to  claim 7 , wherein
 by the first layer rotating relatively with respect to the second layer, the first plurality of lower layer jutting parts take positions hidden by the second plurality of upper layer jutting parts, and positions exposed between adjacent upper layer jutting parts.   
     
     
         8 . The top toy component according to claim  8 , wherein edges of tips of the plurality of lower layer jutting part are arc shaped. 
     
     
         10 . A top toy comprising:
 a first trunk part having a hole;   a second trunk part; and   a shaft member having first and second portions,   the shaft member being detachably inserted to the hole to rotate around the shaft member,   the hole part and the first portion being configured to rotate relatively with respect to the second portion to change an outer circumferential shape of the first trunk part.   the second trunk part being attached to the first trunk part,   the second trunk part having a second hole,   the shaft member being inserted and in the hole.   
     
     
         11 . The top toy according to  claim 10 , wherein
 the top toy is not launched after changing of the outer circumference shape of the first trunk part.   
     
     
         12 . The top toy according to  claim 11 , wherein
 the second portion includes arc-shaped holes used for rotationally urging the top toy, and   the second portion includes projecting pieces that interfere with the arc-shaped holes after changing of the outer circumference shape of the first trunk part.   
     
     
         13 . The top toy according to  claim 10 , wherein
 the shaft member includes a gear that meshes with a toothed rail formed on a field for top toys to battle each other.